Heyoo Thanks for your help, i got it work as you say.
My Steps to "repair" and keep the profile/mods:
Backuped the mods and Profiles folder into a safe place.
Deleted SPT install folder and reinstall SPT.
maked sure that i hit the "meta cache delete" option before installing SPT in the installer
after install I started server and launcher. A was asked in the launcher about to overtake the settings from live EFT - i choose "no"
in settings in the launcher i maked sure that i hit the "gamesettings reset" and "delete temp files" button
then I have startet a new game with new profile and give me a CMS - startet a game and try to fix my blacked legs -> WORKS!
I have copied my backuped mods and profiles folder in their old place, starting the launcher, login with old profile check the same with CMS/Surv12 field surgical kit -> WORKS!
Additionally the icon from Surv12 field surgical kit repaired too.
Maybe also fixed the "stuck on load screen" problem as here:
stuck on "starting local game" but only sometimes
I check it and report afterwards
all in all perfect fix as you say jabes! Nice Work!
Thanks al lot jabes and Jinxie-Boy